Commit | Line | Data |
---|---|---|
0f78b815 WD |
1 | /* |
2 | * The startup routines, including main(), for rsync. | |
3 | * | |
4 | * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org> | |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org> | |
d3d07a5e | 7 | * Copyright (C) 2003-2008 Wayne Davison |
0f78b815 WD |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f78b815 WD |
13 | * |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
e7c67065 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
0f78b815 | 21 | */ |
c627d613 AT |
22 | |
23 | #include "rsync.h" | |
1b42f628 | 24 | #include "ifuncs.h" |
a72ba0cf | 25 | #include "io.h" |
d9401514 WD |
26 | #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H |
27 | #include <locale.h> | |
28 | #endif | |
c627d613 | 29 | |
50839b4b WD |
30 | extern int dry_run; |
31 | extern int list_only; | |
32eda096 | 32 | extern int am_root; |
d9c7edf6 WD |
33 | extern int am_server; |
34 | extern int am_sender; | |
35 | extern int am_daemon; | |
3ea6e0e7 | 36 | extern int inc_recurse; |
32eda096 | 37 | extern int blocking_io; |
6d56efa6 | 38 | extern int human_readable; |
886df221 | 39 | extern int always_checksum; |
47c11975 | 40 | extern int remove_source_files; |
951e826b | 41 | extern int output_needs_newline; |
bf26aa22 | 42 | extern int need_messages_from_generator; |
051182cb | 43 | extern int kluge_around_eof; |
3f0211b6 | 44 | extern int got_xfer_error; |
eabc85ef | 45 | extern int msgs2stderr; |
32eda096 | 46 | extern int module_id; |
bb6721dc | 47 | extern int copy_links; |
a695b379 | 48 | extern int copy_dirlinks; |
01103e18 | 49 | extern int copy_unsafe_links; |
83926d3c | 50 | extern int keep_dirlinks; |
32eda096 | 51 | extern int preserve_hard_links; |
d04e9c51 | 52 | extern int protocol_version; |
f3d6d480 | 53 | extern int file_total; |
32eda096 | 54 | extern int recurse; |
26bbb6aa | 55 | extern int xfer_dirs; |
f7e5068d | 56 | extern int protect_args; |
32eda096 | 57 | extern int relative_paths; |
7c58c991 | 58 | extern int sanitize_paths; |
c2a2147a | 59 | extern int curr_dir_depth; |
615a5415 | 60 | extern int curr_dir_len; |
7c58c991 | 61 | extern int module_id; |
32eda096 | 62 | extern int rsync_port; |
b1df18d7 | 63 | extern int whole_file; |
32eda096 WD |
64 | extern int read_batch; |
65 | extern int write_batch; | |
b9f592fb | 66 | extern int batch_fd; |
32eda096 | 67 | extern int filesfrom_fd; |
ba22c9e2 | 68 | extern int connect_timeout; |
32eda096 | 69 | extern pid_t cleanup_child_pid; |
a1018691 | 70 | extern unsigned int module_dirlen; |
50839b4b | 71 | extern struct stats stats; |
886df221 WD |
72 | extern char *stdout_format; |
73 | extern char *logfile_format; | |
860236bf | 74 | extern char *filesfrom_host; |
c2c8db91 | 75 | extern char *partial_dir; |
ce27f36d | 76 | extern char *dest_option; |
32eda096 WD |
77 | extern char *rsync_path; |
78 | extern char *shell_cmd; | |
9b3318b0 | 79 | extern char *batch_name; |
a39da29a | 80 | extern char *password_file; |
615a5415 | 81 | extern char curr_dir[MAXPATHLEN]; |
b791d680 | 82 | extern char *basis_dir[MAX_BASIS_DIRS+1]; |
da131912 | 83 | extern struct file_list *first_flist; |
819bfe45 | 84 | extern struct filter_list_struct daemon_filter_list; |
57dee64e | 85 | |
19284e2e | 86 | uid_t our_uid; |
93465f51 | 87 | int am_generator = 0; |
57dee64e | 88 | int local_server = 0; |
e208631a | 89 | int daemon_over_rsh = 0; |
05278935 | 90 | mode_t orig_umask = 0; |
f3d6d480 | 91 | int batch_gen_fd = -1; |
886df221 | 92 | int sender_keeps_checksum = 0; |
c627d613 | 93 | |
91c5833b WD |
94 | /* There's probably never more than at most 2 outstanding child processes, |
95 | * but set it higher, just in case. */ | |
84e6d6fd | 96 | #define MAXCHILDPROCS 7 |
ee7118a8 | 97 | |
8261af74 WD |
98 | #ifdef HAVE_SIGACTION |
99 | # ifdef HAVE_SIGPROCMASK | |
100 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
101 | # else | |
102 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
103 | # endif | |
60ee01f5 WD |
104 | static struct sigaction sigact; |
105 | #endif | |
106 | ||
ee7118a8 DD |
107 | struct pid_status { |
108 | pid_t pid; | |
84e6d6fd | 109 | int status; |
ee7118a8 DD |
110 | } pid_stat_table[MAXCHILDPROCS]; |
111 | ||
33c4b445 WD |
112 | static time_t starttime, endtime; |
113 | static int64 total_read, total_written; | |
114 | ||
e5a2b854 | 115 | static void show_malloc_stats(void); |
82980a23 | 116 | |
97d8e709 | 117 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 118 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 119 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 120 | { |
d365e229 WD |
121 | pid_t waited_pid; |
122 | ||
123 | do { | |
124 | waited_pid = waitpid(pid, status_ptr, flags); | |
125 | } while (waited_pid == -1 && errno == EINTR); | |
d9c7edf6 | 126 | |
6fb812f7 | 127 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 128 | /* Status of requested child no longer available: check to |
6d59ac19 | 129 | * see if it was processed by remember_children(). */ |
97d8e709 | 130 | int cnt; |
84e6d6fd | 131 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 132 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 133 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 134 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 135 | return pid; |
ee7118a8 DD |
136 | } |
137 | } | |
138 | } | |
139 | ||
97d8e709 WD |
140 | return waited_pid; |
141 | } | |
142 | ||
143 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 144 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
145 | { |
146 | pid_t waited_pid; | |
147 | int status; | |
148 | ||
149 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
150 | msleep(20); | |
151 | io_flush(FULL_FLUSH); | |
152 | } | |
153 | ||
d9c7edf6 WD |
154 | /* TODO: If the child exited on a signal, then log an |
155 | * appropriate error message. Perhaps we should also accept a | |
156 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 157 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
158 | if (waited_pid < 0) { |
159 | rsyserr(FERROR, errno, "waitpid"); | |
160 | *exit_code_ptr = RERR_WAITCHILD; | |
161 | } else if (!WIFEXITED(status)) { | |
40e6752f | 162 | #ifdef WCOREDUMP |
dbefb6b4 | 163 | if (WCOREDUMP(status)) |
84e6d6fd | 164 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
165 | else |
166 | #endif | |
167 | if (WIFSIGNALED(status)) | |
84e6d6fd | 168 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 169 | else |
84e6d6fd | 170 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 171 | } else |
84e6d6fd | 172 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
173 | } |
174 | ||
b9f592fb WD |
175 | /* This function gets called from all 3 processes. We want the client side |
176 | * to actually output the text, but the sender is the only process that has | |
177 | * all the stats we need. So, if we're a client sender, we do the report. | |
178 | * If we're a server sender, we write the stats on the supplied fd. If | |
179 | * we're the client receiver we read the stats from the supplied fd and do | |
180 | * the report. All processes might also generate a set of debug stats, if | |
181 | * the verbose level is high enough (this is the only thing that the | |
182 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 183 | static void handle_stats(int f) |
c627d613 | 184 | { |
33c4b445 WD |
185 | endtime = time(NULL); |
186 | ||
b9f592fb | 187 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
188 | total_read = stats.total_read; |
189 | total_written = stats.total_written; | |
7a6421fa | 190 | |
951e826b | 191 | if (INFO_GTE(STATS, 3)) { |
5c15e29f | 192 | /* These come out from every process */ |
7bb7058e | 193 | show_malloc_stats(); |
86943126 | 194 | show_flist_stats(); |
5c15e29f MP |
195 | } |
196 | ||
e5fbaa71 S |
197 | if (am_generator) |
198 | return; | |
199 | ||
248fbb8c | 200 | if (am_daemon) { |
83926d3c WD |
201 | if (f == -1 || !am_sender) |
202 | return; | |
248fbb8c AT |
203 | } |
204 | ||
e19452a9 | 205 | if (am_server) { |
3e491682 | 206 | if (am_sender) { |
a72ba0cf WD |
207 | write_varlong30(f, total_read, 3); |
208 | write_varlong30(f, total_written, 3); | |
209 | write_varlong30(f, stats.total_size, 3); | |
f0f7e760 | 210 | if (protocol_version >= 29) { |
a72ba0cf WD |
211 | write_varlong30(f, stats.flist_buildtime, 3); |
212 | write_varlong30(f, stats.flist_xfertime, 3); | |
f0f7e760 | 213 | } |
e19452a9 | 214 | } |
7a6421fa AT |
215 | return; |
216 | } | |
e19452a9 DD |
217 | |
218 | /* this is the client */ | |
d9c7edf6 | 219 | |
9d19f8a5 | 220 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
0f78b815 | 221 | ; |
9d19f8a5 | 222 | else if (!am_sender) { |
58c5c245 WD |
223 | /* Read the first two in opposite order because the meaning of |
224 | * read/write swaps when switching from sender to receiver. */ | |
a72ba0cf WD |
225 | total_written = read_varlong30(f, 3); |
226 | total_read = read_varlong30(f, 3); | |
227 | stats.total_size = read_varlong30(f, 3); | |
f0f7e760 | 228 | if (protocol_version >= 29) { |
a72ba0cf WD |
229 | stats.flist_buildtime = read_varlong30(f, 3); |
230 | stats.flist_xfertime = read_varlong30(f, 3); | |
f0f7e760 | 231 | } |
e4676bb5 | 232 | } else if (write_batch) { |
b9f592fb WD |
233 | /* The --read-batch process is going to be a client |
234 | * receiver, so we need to give it the stats. */ | |
a72ba0cf WD |
235 | write_varlong30(batch_fd, total_read, 3); |
236 | write_varlong30(batch_fd, total_written, 3); | |
237 | write_varlong30(batch_fd, stats.total_size, 3); | |
f0f7e760 | 238 | if (protocol_version >= 29) { |
a72ba0cf WD |
239 | write_varlong30(batch_fd, stats.flist_buildtime, 3); |
240 | write_varlong30(batch_fd, stats.flist_xfertime, 3); | |
f0f7e760 | 241 | } |
a800434a | 242 | } |
e4676bb5 | 243 | } |
a800434a | 244 | |
e4676bb5 WD |
245 | static void output_summary(void) |
246 | { | |
951e826b | 247 | if (INFO_GTE(STATS, 2)) { |
b64ee91a WD |
248 | rprintf(FCLIENT, "\n"); |
249 | rprintf(FINFO,"Number of files: %d\n", stats.num_files); | |
d9c7edf6 WD |
250 | rprintf(FINFO,"Number of files transferred: %d\n", |
251 | stats.num_transferred_files); | |
60613dc8 | 252 | rprintf(FINFO,"Total file size: %s bytes\n", |
6d56efa6 | 253 | big_num(stats.total_size, human_readable)); |
60613dc8 | 254 | rprintf(FINFO,"Total transferred file size: %s bytes\n", |
6d56efa6 | 255 | big_num(stats.total_transferred_size, human_readable)); |
60613dc8 | 256 | rprintf(FINFO,"Literal data: %s bytes\n", |
6d56efa6 | 257 | big_num(stats.literal_data, human_readable)); |
60613dc8 | 258 | rprintf(FINFO,"Matched data: %s bytes\n", |
6d56efa6 | 259 | big_num(stats.matched_data, human_readable)); |
eb0144d7 | 260 | rprintf(FINFO,"File list size: %s\n", |
6d56efa6 | 261 | big_num(stats.flist_size, human_readable)); |
f0f7e760 WD |
262 | if (stats.flist_buildtime) { |
263 | rprintf(FINFO, | |
264 | "File list generation time: %.3f seconds\n", | |
265 | (double)stats.flist_buildtime / 1000); | |
266 | rprintf(FINFO, | |
267 | "File list transfer time: %.3f seconds\n", | |
268 | (double)stats.flist_xfertime / 1000); | |
269 | } | |
60613dc8 | 270 | rprintf(FINFO,"Total bytes sent: %s\n", |
6d56efa6 | 271 | big_num(total_written, human_readable)); |
60613dc8 | 272 | rprintf(FINFO,"Total bytes received: %s\n", |
6d56efa6 | 273 | big_num(total_read, human_readable)); |
7a6421fa | 274 | } |
d9c7edf6 | 275 | |
951e826b | 276 | if (INFO_GTE(STATS, 1)) { |
b64ee91a | 277 | rprintf(FCLIENT, "\n"); |
b9f592fb | 278 | rprintf(FINFO, |
b64ee91a | 279 | "sent %s bytes received %s bytes %s bytes/sec\n", |
6d56efa6 WD |
280 | big_num(total_written, human_readable), |
281 | big_num(total_read, human_readable), | |
60613dc8 | 282 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); |
879b6ad0 | 283 | rprintf(FINFO, "total size is %s speedup is %.2f%s\n", |
6d56efa6 | 284 | big_num(stats.total_size, human_readable), |
879b6ad0 | 285 | (double)stats.total_size / (total_written+total_read), |
641dc0c5 | 286 | write_batch < 0 ? " (BATCH ONLY)" : dry_run ? " (DRY RUN)" : ""); |
e19452a9 | 287 | } |
fc8a6b97 AT |
288 | |
289 | fflush(stdout); | |
290 | fflush(stderr); | |
c627d613 AT |
291 | } |
292 | ||
293 | ||
e5a2b854 MP |
294 | /** |
295 | * If our C library can get malloc statistics, then show them to FINFO | |
296 | **/ | |
297 | static void show_malloc_stats(void) | |
298 | { | |
4f5b0756 | 299 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
300 | struct mallinfo mi; |
301 | ||
302 | mi = mallinfo(); | |
303 | ||
b64ee91a WD |
304 | rprintf(FCLIENT, "\n"); |
305 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", | |
f846a9bf WD |
306 | getpid(), am_server ? "server " : "", |
307 | am_daemon ? "daemon " : "", who_am_i()); | |
308 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
309 | (long)mi.arena); | |
310 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
311 | (long)mi.ordblks); | |
312 | rprintf(FINFO, " smblks: %10ld\n", | |
313 | (long)mi.smblks); | |
314 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
315 | (long)mi.hblks); | |
316 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
317 | (long)mi.hblkhd); | |
318 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
319 | (long)mi.arena + mi.hblkhd); | |
320 | rprintf(FINFO, " usmblks: %10ld\n", | |
321 | (long)mi.usmblks); | |
322 | rprintf(FINFO, " fsmblks: %10ld\n", | |
323 | (long)mi.fsmblks); | |
324 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
325 | (long)mi.uordblks); | |
326 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
327 | (long)mi.fordblks); | |
328 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
329 | (long)mi.keepcost); | |
e5a2b854 MP |
330 | #endif /* HAVE_MALLINFO */ |
331 | } | |
332 | ||
333 | ||
0882faa2 | 334 | /* Start the remote shell. cmd may be NULL to use the default. */ |
f7e5068d WD |
335 | static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, int remote_argc, |
336 | int *f_in_p, int *f_out_p) | |
c627d613 | 337 | { |
6c2e5b56 | 338 | int i, argc = 0; |
887e553f | 339 | char *args[MAX_ARGS]; |
53936ef9 | 340 | pid_t pid; |
bb4aa89c | 341 | int dash_l_set = 0; |
366345fe | 342 | |
088aac85 | 343 | if (!read_batch && !local_server) { |
82f0c63e | 344 | char *t, *f, in_quote = '\0'; |
9af87151 | 345 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 346 | if (!cmd) |
9af87151 | 347 | cmd = rsh_env; |
366345fe AT |
348 | if (!cmd) |
349 | cmd = RSYNC_RSH; | |
aa0e6b99 | 350 | cmd = strdup(cmd); /* MEMORY LEAK */ |
d9c7edf6 | 351 | if (!cmd) |
366345fe AT |
352 | goto oom; |
353 | ||
82f0c63e WD |
354 | for (t = f = cmd; *f; f++) { |
355 | if (*f == ' ') | |
356 | continue; | |
e7a392c7 | 357 | /* Comparison leaves rooms for server_options(). */ |
f7e5068d WD |
358 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) |
359 | goto arg_overflow; | |
82f0c63e WD |
360 | args[argc++] = t; |
361 | while (*f != ' ' || in_quote) { | |
362 | if (!*f) { | |
363 | if (in_quote) { | |
364 | rprintf(FERROR, | |
365 | "Missing trailing-%c in remote-shell command.\n", | |
366 | in_quote); | |
367 | exit_cleanup(RERR_SYNTAX); | |
368 | } | |
369 | f--; | |
370 | break; | |
371 | } | |
372 | if (*f == '\'' || *f == '"') { | |
373 | if (!in_quote) { | |
374 | in_quote = *f++; | |
375 | continue; | |
376 | } | |
377 | if (*f == in_quote && *++f != in_quote) { | |
378 | in_quote = '\0'; | |
379 | continue; | |
380 | } | |
381 | } | |
382 | *t++ = *f++; | |
383 | } | |
384 | *t++ = '\0'; | |
887e553f | 385 | } |
c627d613 | 386 | |
d9c7edf6 | 387 | /* check to see if we've already been given '-l user' in |
9af87151 | 388 | * the remote-shell command */ |
bb4aa89c WD |
389 | for (i = 0; i < argc-1; i++) { |
390 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
391 | dash_l_set = 1; | |
392 | } | |
393 | ||
4f5b0756 | 394 | #ifdef HAVE_REMSH |
366345fe AT |
395 | /* remsh (on HPUX) takes the arguments the other way around */ |
396 | args[argc++] = machine; | |
bb4aa89c | 397 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
398 | args[argc++] = "-l"; |
399 | args[argc++] = user; | |
400 | } | |
7b8356d0 | 401 | #else |
bb4aa89c | 402 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
403 | args[argc++] = "-l"; |
404 | args[argc++] = user; | |
405 | } | |
406 | args[argc++] = machine; | |
7b8356d0 | 407 | #endif |
c627d613 | 408 | |
366345fe | 409 | args[argc++] = rsync_path; |
c627d613 | 410 | |
9af87151 | 411 | if (blocking_io < 0) { |
90e22f4b WD |
412 | char *cp; |
413 | if ((cp = strrchr(cmd, '/')) != NULL) | |
414 | cp++; | |
415 | else | |
416 | cp = cmd; | |
417 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
418 | blocking_io = 1; | |
66b71163 | 419 | } |
e384bfbd | 420 | |
93689aa5 | 421 | server_options(args,&argc); |
e7a392c7 | 422 | |
f7e5068d WD |
423 | if (argc >= MAX_ARGS - 2) |
424 | goto arg_overflow; | |
366345fe | 425 | } |
c627d613 | 426 | |
366345fe | 427 | args[argc++] = "."; |
76076c4b | 428 | |
f7e5068d WD |
429 | if (!daemon_over_rsh) { |
430 | while (remote_argc > 0) { | |
431 | if (argc >= MAX_ARGS - 1) { | |
432 | arg_overflow: | |
433 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
434 | exit_cleanup(RERR_SYNTAX); | |
435 | } | |
436 | args[argc++] = *remote_argv++; | |
437 | remote_argc--; | |
438 | } | |
439 | } | |
c627d613 | 440 | |
366345fe | 441 | args[argc] = NULL; |
c627d613 | 442 | |
951e826b | 443 | if (DEBUG_GTE(CMD, 2)) { |
e7a392c7 | 444 | for (i = 0; i < argc; i++) |
b64ee91a WD |
445 | rprintf(FCLIENT, "cmd[%d]=%s ", i, args[i]); |
446 | rprintf(FCLIENT, "\n"); | |
366345fe AT |
447 | } |
448 | ||
c0d8e84c WD |
449 | if (read_batch) { |
450 | int from_gen_pipe[2]; | |
ea4e8cf8 | 451 | set_allow_inc_recurse(); |
c0d8e84c WD |
452 | if (fd_pair(from_gen_pipe) < 0) { |
453 | rsyserr(FERROR, errno, "pipe"); | |
454 | exit_cleanup(RERR_IPC); | |
455 | } | |
456 | batch_gen_fd = from_gen_pipe[0]; | |
f7e5068d WD |
457 | *f_out_p = from_gen_pipe[1]; |
458 | *f_in_p = batch_fd; | |
53936ef9 | 459 | pid = (pid_t)-1; /* no child pid */ |
44c4492a | 460 | #ifdef ICONV_CONST |
b61665d5 | 461 | setup_iconv(); |
44c4492a | 462 | #endif |
c0d8e84c | 463 | } else if (local_server) { |
b1df18d7 WD |
464 | /* If the user didn't request --[no-]whole-file, force |
465 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 466 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 467 | whole_file = 1; |
ea4e8cf8 | 468 | set_allow_inc_recurse(); |
53936ef9 | 469 | pid = local_child(argc, args, f_in_p, f_out_p, child_main); |
44c4492a | 470 | #ifdef ICONV_CONST |
b61665d5 | 471 | setup_iconv(); |
44c4492a | 472 | #endif |
f7e5068d | 473 | } else { |
53936ef9 | 474 | pid = piped_child(args, f_in_p, f_out_p); |
44c4492a | 475 | #ifdef ICONV_CONST |
b61665d5 | 476 | setup_iconv(); |
44c4492a | 477 | #endif |
53936ef9 WD |
478 | if (protect_args) |
479 | send_protected_args(*f_out_p, args); | |
f7e5068d | 480 | } |
c627d613 | 481 | |
53936ef9 | 482 | return pid; |
c627d613 | 483 | |
acee11fc | 484 | oom: |
366345fe AT |
485 | out_of_memory("do_cmd"); |
486 | return 0; /* not reached */ | |
c627d613 AT |
487 | } |
488 | ||
eb598fac WD |
489 | /* The receiving side operates in one of two modes: |
490 | * | |
cc8c5057 WD |
491 | * 1. it receives any number of files into a destination directory, |
492 | * placing them according to their names in the file-list. | |
eb598fac WD |
493 | * |
494 | * 2. it receives a single file and saves it using the name in the | |
495 | * destination path instead of its file-list name. This requires a | |
496 | * "local name" for writing out the destination file. | |
497 | * | |
a7d461fc WD |
498 | * So, our task is to figure out what mode/local-name we need. |
499 | * For mode 1, we change into the destination directory and return NULL. | |
500 | * For mode 2, we change into the directory containing the destination | |
501 | * file (if we aren't already there) and return the local-name. */ | |
eb598fac | 502 | static char *get_local_name(struct file_list *flist, char *dest_path) |
c627d613 | 503 | { |
7a6421fa | 504 | STRUCT_STAT st; |
a7d461fc | 505 | int statret; |
eb598fac | 506 | char *cp; |
c627d613 | 507 | |
951e826b | 508 | if (DEBUG_GTE(RECV, 1)) { |
eb598fac | 509 | rprintf(FINFO, "get_local_name count=%d %s\n", |
f3d6d480 | 510 | file_total, NS(dest_path)); |
eb598fac | 511 | } |
1f0610ef | 512 | |
ee8e2b15 | 513 | if (!dest_path || list_only) |
1f0610ef | 514 | return NULL; |
c95da96a | 515 | |
311676ed WD |
516 | if (daemon_filter_list.head) { |
517 | char *slash = strrchr(dest_path, '/'); | |
164cb66a | 518 | if (slash && (slash[1] == '\0' || (slash[1] == '.' && slash[2] == '\0'))) |
311676ed WD |
519 | *slash = '\0'; |
520 | else | |
521 | slash = NULL; | |
164cb66a WD |
522 | if ((*dest_path != '.' || dest_path[1] != '\0') |
523 | && (check_filter(&daemon_filter_list, FLOG, dest_path, 0) < 0 | |
524 | || check_filter(&daemon_filter_list, FLOG, dest_path, 1) < 0)) { | |
311676ed WD |
525 | rprintf(FERROR, "skipping daemon-excluded destination \"%s\"\n", |
526 | dest_path); | |
527 | exit_cleanup(RERR_FILESELECT); | |
528 | } | |
529 | if (slash) | |
530 | *slash = '/'; | |
99c3e591 WD |
531 | } |
532 | ||
a7d461fc | 533 | /* See what currently exists at the destination. */ |
1a7f3d99 | 534 | if ((statret = do_stat(dest_path, &st)) == 0) { |
a7d461fc | 535 | /* If the destination is a dir, enter it and use mode 1. */ |
1ff5450d | 536 | if (S_ISDIR(st.st_mode)) { |
29a89172 WD |
537 | if (!change_dir(dest_path, CD_NORMAL)) { |
538 | rsyserr(FERROR, errno, "change_dir#1 %s failed", | |
eb598fac | 539 | full_fname(dest_path)); |
65417579 | 540 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
541 | } |
542 | return NULL; | |
543 | } | |
f3d6d480 | 544 | if (file_total > 1) { |
eb598fac WD |
545 | rprintf(FERROR, |
546 | "ERROR: destination must be a directory when" | |
547 | " copying more than 1 file\n"); | |
65417579 | 548 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 549 | } |
f3d6d480 | 550 | if (file_total == 1 && S_ISDIR(flist->files[0]->mode)) { |
44c26bf2 WD |
551 | rprintf(FERROR, |
552 | "ERROR: cannot overwrite non-directory" | |
553 | " with a directory\n"); | |
554 | exit_cleanup(RERR_FILESELECT); | |
555 | } | |
cc8c5057 | 556 | } else if (errno != ENOENT) { |
a7d461fc WD |
557 | /* If we don't know what's at the destination, fail. */ |
558 | rsyserr(FERROR, errno, "ERROR: cannot stat destination %s", | |
cc8c5057 WD |
559 | full_fname(dest_path)); |
560 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
561 | } |
562 | ||
eb598fac WD |
563 | cp = strrchr(dest_path, '/'); |
564 | ||
a7d461fc WD |
565 | /* If we need a destination directory because the transfer is not |
566 | * of a single non-directory or the user has requested one via a | |
567 | * destination path ending in a slash, create one and use mode 1. */ | |
f3d6d480 | 568 | if (file_total > 1 || (cp && !cp[1])) { |
eb598fac WD |
569 | /* Lop off the final slash (if any). */ |
570 | if (cp && !cp[1]) | |
571 | *cp = '\0'; | |
572 | ||
a7d461fc WD |
573 | if (statret == 0) { |
574 | rprintf(FERROR, | |
575 | "ERROR: destination path is not a directory\n"); | |
576 | exit_cleanup(RERR_SYNTAX); | |
577 | } | |
578 | ||
05278935 | 579 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
580 | rsyserr(FERROR, errno, "mkdir %s failed", |
581 | full_fname(dest_path)); | |
582 | exit_cleanup(RERR_FILEIO); | |
583 | } | |
1ff5450d | 584 | |
7341ee2d WD |
585 | if (flist->high >= flist->low |
586 | && strcmp(flist->files[flist->low]->basename, ".") == 0) | |
288b12ee | 587 | flist->files[0]->flags |= FLAG_DIR_CREATED; |
2a94207a | 588 | |
951e826b | 589 | if (INFO_GTE(NAME, 1)) |
eb598fac WD |
590 | rprintf(FINFO, "created directory %s\n", dest_path); |
591 | ||
592 | if (dry_run) { | |
615a5415 | 593 | /* Indicate that dest dir doesn't really exist. */ |
eb598fac | 594 | dry_run++; |
eb598fac WD |
595 | } |
596 | ||
29a89172 WD |
597 | if (!change_dir(dest_path, dry_run > 1 ? CD_SKIP_CHDIR : CD_NORMAL)) { |
598 | rsyserr(FERROR, errno, "change_dir#2 %s failed", | |
eb598fac WD |
599 | full_fname(dest_path)); |
600 | exit_cleanup(RERR_FILESELECT); | |
601 | } | |
e5a96f0f | 602 | |
e5a96f0f | 603 | return NULL; |
1ff5450d AT |
604 | } |
605 | ||
eb598fac WD |
606 | /* Otherwise, we are writing a single file, possibly on top of an |
607 | * existing non-directory. Change to the item's parent directory | |
608 | * (if it has a path component), return the basename of the | |
609 | * destination file as the local name, and use mode 2. */ | |
610 | if (!cp) | |
611 | return dest_path; | |
612 | ||
613 | if (cp == dest_path) | |
614 | dest_path = "/"; | |
615 | ||
616 | *cp = '\0'; | |
29a89172 WD |
617 | if (!change_dir(dest_path, CD_NORMAL)) { |
618 | rsyserr(FERROR, errno, "change_dir#3 %s failed", | |
eb598fac | 619 | full_fname(dest_path)); |
65417579 | 620 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 621 | } |
eb598fac | 622 | *cp = '/'; |
1ff5450d | 623 | |
eb598fac | 624 | return cp + 1; |
c627d613 AT |
625 | } |
626 | ||
ce27f36d WD |
627 | /* This function checks on our alternate-basis directories. If we're in |
628 | * dry-run mode and the destination dir does not yet exist, we'll try to | |
629 | * tweak any dest-relative paths to make them work for a dry-run (the | |
630 | * destination dir must be in curr_dir[] when this function is called). | |
42a28d9d | 631 | * We also warn about any arg that is non-existent or not a directory. */ |
ce27f36d | 632 | static void check_alt_basis_dirs(void) |
615a5415 | 633 | { |
ce27f36d WD |
634 | STRUCT_STAT st; |
635 | char **dir_p, *slash = strrchr(curr_dir, '/'); | |
636 | ||
637 | for (dir_p = basis_dir; *dir_p; dir_p++) { | |
638 | if (dry_run > 1 && **dir_p != '/') { | |
639 | int len = curr_dir_len + 1 + strlen(*dir_p) + 1; | |
640 | char *new = new_array(char, len); | |
641 | if (!new) | |
642 | out_of_memory("check_alt_basis_dirs"); | |
643 | if (slash && strncmp(*dir_p, "../", 3) == 0) { | |
644 | /* We want to remove only one leading "../" prefix for | |
645 | * the directory we couldn't create in dry-run mode: | |
646 | * this ensures that any other ".." references get | |
647 | * evaluated the same as they would for a live copy. */ | |
648 | *slash = '\0'; | |
649 | pathjoin(new, len, curr_dir, *dir_p + 3); | |
650 | *slash = '/'; | |
651 | } else | |
652 | pathjoin(new, len, curr_dir, *dir_p); | |
653 | *dir_p = new; | |
654 | } | |
655 | if (do_stat(*dir_p, &st) < 0) { | |
656 | rprintf(FWARNING, "%s arg does not exist: %s\n", | |
657 | dest_option, *dir_p); | |
658 | } else if (!S_ISDIR(st.st_mode)) { | |
659 | rprintf(FWARNING, "%s arg is not a dir: %s\n", | |
660 | dest_option, *dir_p); | |
661 | } | |
615a5415 WD |
662 | } |
663 | } | |
c627d613 | 664 | |
1a8e5c97 | 665 | /* This is only called by the sender. */ |
16edf865 | 666 | static void read_final_goodbye(int f_in) |
4e0fcd85 | 667 | { |
f3d6d480 WD |
668 | int i, iflags, xlen; |
669 | uchar fnamecmp_type; | |
670 | char xname[MAXPATHLEN]; | |
1a8e5c97 WD |
671 | |
672 | if (protocol_version < 29) | |
673 | i = read_int(f_in); | |
674 | else { | |
16edf865 WD |
675 | i = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, |
676 | xname, &xlen); | |
4e0fcd85 WD |
677 | } |
678 | ||
82ad07c4 | 679 | if (i != NDX_DONE) { |
c7791b8c WD |
680 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
681 | i, who_am_i()); | |
1a8e5c97 | 682 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
683 | } |
684 | } | |
685 | ||
eb598fac | 686 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 687 | { |
7a6421fa AT |
688 | struct file_list *flist; |
689 | char *dir = argv[0]; | |
c627d613 | 690 | |
951e826b | 691 | if (DEBUG_GTE(SEND, 1)) { |
45e08edb WD |
692 | rprintf(FINFO, "server_sender starting pid=%ld\n", |
693 | (long)getpid()); | |
694 | } | |
d9c7edf6 | 695 | |
2adbcdc7 | 696 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
697 | rprintf(FERROR, "ERROR: module is write only\n"); |
698 | exit_cleanup(RERR_SYNTAX); | |
699 | return; | |
700 | } | |
47c11975 | 701 | if (am_daemon && lp_read_only(module_id) && remove_source_files) { |
bf26aa22 | 702 | rprintf(FERROR, |
044ccbaa | 703 | "ERROR: --remove-%s-files cannot be used with a read-only module\n", |
47c11975 | 704 | remove_source_files == 1 ? "source" : "sent"); |
bf26aa22 WD |
705 | exit_cleanup(RERR_SYNTAX); |
706 | return; | |
707 | } | |
7a92ded3 | 708 | |
582c1589 | 709 | if (!relative_paths) { |
29a89172 WD |
710 | if (!change_dir(dir, CD_NORMAL)) { |
711 | rsyserr(FERROR, errno, "change_dir#3 %s failed", | |
582c1589 WD |
712 | full_fname(dir)); |
713 | exit_cleanup(RERR_FILESELECT); | |
714 | } | |
7a6421fa AT |
715 | } |
716 | argc--; | |
717 | argv++; | |
d9c7edf6 | 718 | |
e844a4a8 | 719 | if (argc == 0 && (recurse || xfer_dirs || list_only)) { |
e1f67417 | 720 | argc = 1; |
7a6421fa AT |
721 | argv--; |
722 | argv[0] = "."; | |
723 | } | |
d9c7edf6 | 724 | |
7a6421fa | 725 | flist = send_file_list(f_out,argc,argv); |
9decb4d2 | 726 | if (!flist || flist->used == 0) |
8d9dc9f9 | 727 | exit_cleanup(0); |
8d9dc9f9 | 728 | |
f3d6d480 | 729 | io_start_buffering_in(f_in); |
da3478b2 | 730 | |
f3d6d480 | 731 | send_files(f_in, f_out); |
f1e3656e | 732 | io_flush(FULL_FLUSH); |
33c4b445 | 733 | handle_stats(f_out); |
4e0fcd85 | 734 | if (protocol_version >= 24) |
16edf865 | 735 | read_final_goodbye(f_in); |
f1e3656e | 736 | io_flush(FULL_FLUSH); |
7a6421fa | 737 | exit_cleanup(0); |
c627d613 AT |
738 | } |
739 | ||
740 | ||
f3d6d480 | 741 | static int do_recv(int f_in, int f_out, char *local_name) |
dc5ddbcc | 742 | { |
d186eb1a | 743 | int pid; |
84e6d6fd | 744 | int exit_code = 0; |
c70e07d9 | 745 | int error_pipe[2]; |
dc5ddbcc | 746 | |
bb6721dc WD |
747 | /* The receiving side mustn't obey this, or an existing symlink that |
748 | * points to an identical file won't be replaced by the referent. */ | |
01103e18 | 749 | copy_links = copy_dirlinks = copy_unsafe_links = 0; |
bb6721dc | 750 | |
1e1ca253 | 751 | #ifdef SUPPORT_HARD_LINKS |
d4d6646a | 752 | if (preserve_hard_links && !inc_recurse) |
da131912 | 753 | match_hard_links(first_flist); |
1e1ca253 | 754 | #endif |
dc5ddbcc | 755 | |
c70e07d9 | 756 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 757 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 758 | exit_cleanup(RERR_IPC); |
554e0a8d | 759 | } |
d9c7edf6 | 760 | |
f1e3656e | 761 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 762 | |
ba449e44 | 763 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 764 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
765 | exit_cleanup(RERR_IPC); |
766 | } | |
767 | ||
768 | if (pid == 0) { | |
554e0a8d | 769 | close(error_pipe[0]); |
3a69fad0 WD |
770 | if (f_in != f_out) |
771 | close(f_out); | |
e08c9610 | 772 | |
554e0a8d | 773 | /* we can't let two processes write to the socket at one time */ |
f3d6d480 | 774 | io_end_multiplex_out(); |
554e0a8d AT |
775 | |
776 | /* set place to send errors */ | |
f1e3656e | 777 | set_msg_fd_out(error_pipe[1]); |
f3d6d480 | 778 | io_start_buffering_out(error_pipe[1]); |
554e0a8d | 779 | |
f3d6d480 | 780 | recv_files(f_in, local_name); |
f1e3656e | 781 | io_flush(FULL_FLUSH); |
33c4b445 | 782 | handle_stats(f_in); |
e08c9610 | 783 | |
951e826b WD |
784 | if (output_needs_newline) { |
785 | fputc('\n', stdout); | |
786 | output_needs_newline = 0; | |
787 | } | |
788 | ||
332cf6df | 789 | send_msg(MSG_DONE, "", 1, 0); |
a72ba0cf | 790 | write_varlong(error_pipe[1], stats.total_read, 3); |
f1e3656e | 791 | io_flush(FULL_FLUSH); |
4e0fcd85 | 792 | |
40df65fd WD |
793 | /* Handle any keep-alive packets from the post-processing work |
794 | * that the generator does. */ | |
4e0fcd85 | 795 | if (protocol_version >= 29) { |
f3d6d480 WD |
796 | int iflags, xlen; |
797 | uchar fnamecmp_type; | |
798 | char xname[MAXPATHLEN]; | |
799 | ||
051182cb | 800 | kluge_around_eof = -1; |
1a8e5c97 WD |
801 | |
802 | /* This should only get stopped via a USR2 signal. */ | |
16edf865 | 803 | read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, |
f3d6d480 | 804 | xname, &xlen); |
1a8e5c97 | 805 | |
3485ae83 WD |
806 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
807 | who_am_i()); | |
1a8e5c97 | 808 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
809 | } |
810 | ||
9e0582f9 WD |
811 | /* Finally, we go to sleep until our parent kills us with a |
812 | * USR2 signal. We sleep for a short time, as on some OSes | |
813 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
814 | while (1) |
815 | msleep(20); | |
d186eb1a | 816 | } |
dc5ddbcc | 817 | |
b695f242 | 818 | am_generator = 1; |
f3d6d480 WD |
819 | |
820 | io_end_multiplex_in(); | |
e8a96e27 | 821 | if (write_batch && !am_server) |
b9f592fb | 822 | stop_write_batch(); |
b695f242 | 823 | |
554e0a8d | 824 | close(error_pipe[1]); |
3a69fad0 WD |
825 | if (f_in != f_out) |
826 | close(f_in); | |
e1b3d5c4 | 827 | |
f3d6d480 | 828 | io_start_buffering_out(f_out); |
b3e10ed7 | 829 | |
f1e3656e | 830 | set_msg_fd_in(error_pipe[0]); |
f3d6d480 | 831 | io_start_buffering_in(error_pipe[0]); |
554e0a8d | 832 | |
da131912 WD |
833 | #ifdef SUPPORT_HARD_LINKS |
834 | if (preserve_hard_links && inc_recurse) { | |
835 | struct file_list *flist; | |
836 | for (flist = first_flist; flist; flist = flist->next) | |
837 | match_hard_links(flist); | |
838 | } | |
839 | #endif | |
840 | ||
f3d6d480 | 841 | generate_files(f_out, local_name); |
8d9dc9f9 | 842 | |
33c4b445 | 843 | handle_stats(-1); |
f1e3656e | 844 | io_flush(FULL_FLUSH); |
d04e9c51 | 845 | if (protocol_version >= 24) { |
8ada7518 | 846 | /* send a final goodbye message */ |
9ae7a2cd | 847 | write_ndx(f_out, NDX_DONE); |
8ada7518 | 848 | } |
f1e3656e | 849 | io_flush(FULL_FLUSH); |
8ada7518 | 850 | |
f1e3656e | 851 | set_msg_fd_in(-1); |
089a2435 | 852 | kill(pid, SIGUSR2); |
84e6d6fd WD |
853 | wait_process_with_flush(pid, &exit_code); |
854 | return exit_code; | |
dc5ddbcc AT |
855 | } |
856 | ||
f3d6d480 | 857 | static void do_server_recv(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 858 | { |
84e6d6fd | 859 | int exit_code; |
7a6421fa | 860 | struct file_list *flist; |
6c2e5b56 | 861 | char *local_name = NULL; |
951e826b | 862 | int negated_levels; |
07bff66f | 863 | |
eabc85ef | 864 | if (filesfrom_fd >= 0 && !msgs2stderr) { |
07bff66f | 865 | /* We can't mix messages with files-from data on the socket, |
951e826b WD |
866 | * so temporarily turn off info/debug messages. */ |
867 | negate_output_levels(); | |
868 | negated_levels = 1; | |
869 | } else | |
870 | negated_levels = 0; | |
f0fca04e | 871 | |
951e826b | 872 | if (DEBUG_GTE(RECV, 1)) { |
45e08edb WD |
873 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", |
874 | argc, (long)getpid()); | |
875 | } | |
09b7f5db | 876 | |
2adbcdc7 | 877 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
878 | rprintf(FERROR,"ERROR: module is read only\n"); |
879 | exit_cleanup(RERR_SYNTAX); | |
880 | return; | |
881 | } | |
882 | ||
7a6421fa | 883 | if (argc > 0) { |
a1018691 | 884 | char *dir = argv[0]; |
7a6421fa AT |
885 | argc--; |
886 | argv++; | |
29a89172 WD |
887 | if (!am_daemon && !change_dir(dir, CD_NORMAL)) { |
888 | rsyserr(FERROR, errno, "change_dir#4 %s failed", | |
982e05bb | 889 | full_fname(dir)); |
65417579 | 890 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 891 | } |
7a6421fa | 892 | } |
c627d613 | 893 | |
f3d6d480 WD |
894 | if (protocol_version >= 30) |
895 | io_start_multiplex_in(); | |
896 | else | |
897 | io_start_buffering_in(f_in); | |
57dee64e | 898 | recv_filter_list(f_in); |
c627d613 | 899 | |
7c2a9e76 | 900 | if (filesfrom_fd >= 0) { |
07bff66f WD |
901 | /* We need to send the files-from names to the sender at the |
902 | * same time that we receive the file-list from them, so we | |
903 | * need the IO routines to automatically write out the names | |
904 | * onto our f_out socket as we read the file-list. This | |
905 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
906 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
907 | filesfrom_fd = -1; | |
908 | } | |
909 | ||
b9f592fb | 910 | flist = recv_file_list(f_in); |
4c36a13e AT |
911 | if (!flist) { |
912 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 913 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 914 | } |
3ea6e0e7 | 915 | if (inc_recurse && file_total == 1) |
f3d6d480 | 916 | recv_additional_file_list(f_in); |
951e826b WD |
917 | |
918 | if (negated_levels) | |
919 | negate_output_levels(); | |
d9c7edf6 | 920 | |
29fad7a3 | 921 | if (argc > 0) |
7a6421fa | 922 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 923 | |
7c58c991 WD |
924 | /* Now that we know what our destination directory turned out to be, |
925 | * we can sanitize the --link-/copy-/compare-dest args correctly. */ | |
926 | if (sanitize_paths) { | |
ce27f36d WD |
927 | char **dir_p; |
928 | for (dir_p = basis_dir; *dir_p; dir_p++) | |
d48810ba | 929 | *dir_p = sanitize_path(NULL, *dir_p, NULL, curr_dir_depth, SP_DEFAULT); |
ce27f36d | 930 | if (partial_dir) |
d48810ba | 931 | partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, SP_DEFAULT); |
c2c8db91 | 932 | } |
ce27f36d | 933 | check_alt_basis_dirs(); |
615a5415 | 934 | |
819bfe45 | 935 | if (daemon_filter_list.head) { |
a1018691 | 936 | char **dir_p; |
819bfe45 | 937 | struct filter_list_struct *elp = &daemon_filter_list; |
c2c8db91 | 938 | |
a1018691 WD |
939 | for (dir_p = basis_dir; *dir_p; dir_p++) { |
940 | char *dir = *dir_p; | |
941 | if (*dir == '/') | |
942 | dir += module_dirlen; | |
1df02d13 | 943 | if (check_filter(elp, FLOG, dir, 1) < 0) |
c2c8db91 WD |
944 | goto options_rejected; |
945 | } | |
946 | if (partial_dir && *partial_dir == '/' | |
1df02d13 | 947 | && check_filter(elp, FLOG, partial_dir + module_dirlen, 1) < 0) { |
c2c8db91 WD |
948 | options_rejected: |
949 | rprintf(FERROR, | |
950 | "Your options have been rejected by the server.\n"); | |
951 | exit_cleanup(RERR_SYNTAX); | |
952 | } | |
7c58c991 WD |
953 | } |
954 | ||
f3d6d480 | 955 | exit_code = do_recv(f_in, f_out, local_name); |
84e6d6fd | 956 | exit_cleanup(exit_code); |
c627d613 AT |
957 | } |
958 | ||
959 | ||
734a94a2 | 960 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
961 | { |
962 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 963 | return 0; |
25d34a5c MP |
964 | } |
965 | ||
966 | ||
9486289c | 967 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 968 | { |
f0359dd0 AT |
969 | set_nonblocking(f_in); |
970 | set_nonblocking(f_out); | |
971 | ||
da3478b2 WD |
972 | io_set_sock_fds(f_in, f_out); |
973 | setup_protocol(f_out, f_in); | |
974 | ||
d04e9c51 | 975 | if (protocol_version >= 23) |
da3478b2 | 976 | io_start_multiplex_out(); |
7a6421fa | 977 | |
7a6421fa | 978 | if (am_sender) { |
83926d3c | 979 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
980 | if (need_messages_from_generator) |
981 | io_start_multiplex_in(); | |
7842418b | 982 | recv_filter_list(f_in); |
7a6421fa | 983 | do_server_sender(f_in, f_out, argc, argv); |
07613def | 984 | } else |
7a6421fa | 985 | do_server_recv(f_in, f_out, argc, argv); |
7a6421fa | 986 | exit_cleanup(0); |
366345fe AT |
987 | } |
988 | ||
0ba48136 MP |
989 | |
990 | /* | |
991 | * This is called once the connection has been negotiated. It is used | |
992 | * for rsyncd, remote-shell, and local connections. | |
993 | */ | |
19b27a48 | 994 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 995 | { |
088aac85 | 996 | struct file_list *flist = NULL; |
84e6d6fd | 997 | int exit_code = 0, exit_code2 = 0; |
9486289c | 998 | char *local_name = NULL; |
19b27a48 AT |
999 | |
1000 | cleanup_child_pid = pid; | |
67a28eb2 | 1001 | if (!read_batch) { |
b9f592fb WD |
1002 | set_nonblocking(f_in); |
1003 | set_nonblocking(f_out); | |
1004 | } | |
f0359dd0 | 1005 | |
da3478b2 | 1006 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
1007 | setup_protocol(f_out,f_in); |
1008 | ||
18882701 WD |
1009 | /* We set our stderr file handle to blocking because ssh might have |
1010 | * set it to non-blocking. This can be particularly troublesome if | |
1011 | * stderr is a clone of stdout, because ssh would have set our stdout | |
1012 | * to non-blocking at the same time (which can easily cause us to lose | |
1013 | * output from our print statements). This kluge shouldn't cause ssh | |
1014 | * any problems for how we use it. Note also that we delayed setting | |
1015 | * this until after the above protocol setup so that we know for sure | |
1016 | * that ssh is done twiddling its file descriptors. */ | |
1017 | set_blocking(STDERR_FILENO); | |
1018 | ||
9486289c | 1019 | if (am_sender) { |
83926d3c | 1020 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
886df221 WD |
1021 | |
1022 | if (always_checksum | |
1023 | && (log_format_has(stdout_format, 'C') | |
1024 | || log_format_has(logfile_format, 'C'))) | |
1025 | sender_keeps_checksum = 1; | |
1026 | ||
f3d6d480 WD |
1027 | if (protocol_version >= 30) |
1028 | io_start_multiplex_out(); | |
1029 | else | |
1030 | io_start_buffering_out(f_out); | |
860236bf | 1031 | if (!filesfrom_host) |
a0a33ee5 | 1032 | set_msg_fd_in(f_in); |
57dee64e | 1033 | send_filter_list(f_out); |
860236bf | 1034 | if (filesfrom_host) |
7c2a9e76 | 1035 | filesfrom_fd = f_in; |
b9f592fb | 1036 | |
e8a96e27 | 1037 | if (write_batch && !am_server) |
b9f592fb | 1038 | start_write_batch(f_out); |
a00628b3 | 1039 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 1040 | set_msg_fd_in(-1); |
951e826b | 1041 | if (DEBUG_GTE(FLIST, 3)) |
9486289c | 1042 | rprintf(FINFO,"file list sent\n"); |
f3d6d480 WD |
1043 | |
1044 | if (protocol_version >= 23) | |
1045 | io_start_multiplex_in(); | |
e1b3d5c4 | 1046 | |
f1e3656e | 1047 | io_flush(NORMAL_FLUSH); |
f3d6d480 | 1048 | send_files(f_in, f_out); |
f1e3656e | 1049 | io_flush(FULL_FLUSH); |
33c4b445 | 1050 | handle_stats(-1); |
4e0fcd85 | 1051 | if (protocol_version >= 24) |
16edf865 | 1052 | read_final_goodbye(f_in); |
9486289c | 1053 | if (pid != -1) { |
951e826b | 1054 | if (DEBUG_GTE(EXIT, 2)) |
08a740ff | 1055 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 1056 | io_flush(FULL_FLUSH); |
84e6d6fd | 1057 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1058 | } |
33c4b445 | 1059 | output_summary(); |
c87ae64a | 1060 | io_flush(FULL_FLUSH); |
84e6d6fd | 1061 | exit_cleanup(exit_code); |
9486289c | 1062 | } |
f7632fc6 | 1063 | |
f3d6d480 WD |
1064 | if (!read_batch) { |
1065 | if (protocol_version >= 23) | |
1066 | io_start_multiplex_in(); | |
1067 | if (need_messages_from_generator) | |
1068 | io_start_multiplex_out(); | |
1069 | } | |
bf26aa22 | 1070 | |
57dee64e | 1071 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 1072 | |
7c2a9e76 WD |
1073 | if (filesfrom_fd >= 0) { |
1074 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
1075 | filesfrom_fd = -1; | |
1076 | } | |
1077 | ||
e8a96e27 | 1078 | if (write_batch && !am_server) |
b9f592fb | 1079 | start_write_batch(f_in); |
9486289c | 1080 | flist = recv_file_list(f_in); |
3ea6e0e7 | 1081 | if (inc_recurse && file_total == 1) |
f3d6d480 | 1082 | recv_additional_file_list(f_in); |
d9c7edf6 | 1083 | |
9decb4d2 | 1084 | if (flist && flist->used > 0) { |
9d19f8a5 | 1085 | local_name = get_local_name(flist, argv[0]); |
d9c7edf6 | 1086 | |
ce27f36d | 1087 | check_alt_basis_dirs(); |
615a5415 | 1088 | |
f3d6d480 | 1089 | exit_code2 = do_recv(f_in, f_out, local_name); |
9d19f8a5 WD |
1090 | } else { |
1091 | handle_stats(-1); | |
1092 | output_summary(); | |
1093 | } | |
d9c7edf6 | 1094 | |
9486289c | 1095 | if (pid != -1) { |
951e826b | 1096 | if (DEBUG_GTE(RECV, 1)) |
08a740ff | 1097 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 1098 | io_flush(FULL_FLUSH); |
84e6d6fd | 1099 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1100 | } |
d9c7edf6 | 1101 | |
84e6d6fd | 1102 | return MAX(exit_code, exit_code2); |
9486289c AT |
1103 | } |
1104 | ||
07613def | 1105 | static int copy_argv(char *argv[]) |
7169bb4a MP |
1106 | { |
1107 | int i; | |
1108 | ||
1109 | for (i = 0; argv[i]; i++) { | |
1110 | if (!(argv[i] = strdup(argv[i]))) { | |
1111 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
1112 | __FILE__, __LINE__); | |
1113 | return RERR_MALLOC; | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | ||
c1a04ecb | 1121 | /** |
0ba48136 MP |
1122 | * Start a client for either type of remote connection. Work out |
1123 | * whether the arguments request a remote shell or rsyncd connection, | |
1124 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
1125 | * |
1126 | * Calls either start_socket_client (for sockets) or do_cmd and | |
1127 | * client_run (for ssh). | |
c1a04ecb | 1128 | **/ |
fc8a6b97 | 1129 | static int start_client(int argc, char *argv[]) |
5d6bcd44 | 1130 | { |
f7e5068d WD |
1131 | char *p, *shell_machine = NULL, *shell_user = NULL; |
1132 | char **remote_argv; | |
1133 | int remote_argc; | |
1134 | int f_in, f_out; | |
19b27a48 AT |
1135 | int ret; |
1136 | pid_t pid; | |
7169bb4a MP |
1137 | |
1138 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 1139 | * command line. */ |
f7e5068d WD |
1140 | if ((ret = copy_argv(argv)) != 0) |
1141 | return ret; | |
5d6bcd44 | 1142 | |
d16c245f | 1143 | if (!read_batch) { /* for read_batch, NO source is specified */ |
f7e5068d WD |
1144 | char *path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
1145 | if (path) { /* source is remote */ | |
a960239f WD |
1146 | char *dummy_host; |
1147 | int dummy_port = 0; | |
f7e5068d WD |
1148 | *argv = path; |
1149 | remote_argv = argv; | |
1150 | remote_argc = argc; | |
1151 | argv += argc - 1; | |
1152 | if (argc == 1 || **argv == ':') | |
1153 | argc = 0; /* no dest arg */ | |
a960239f | 1154 | else if (check_for_hostspec(*argv, &dummy_host, &dummy_port)) { |
9425918d WD |
1155 | rprintf(FERROR, |
1156 | "The source and destination cannot both be remote.\n"); | |
1157 | exit_cleanup(RERR_SYNTAX); | |
f7e5068d WD |
1158 | } else { |
1159 | remote_argc--; /* don't count dest */ | |
1160 | argc = 1; | |
9425918d | 1161 | } |
860236bf WD |
1162 | if (filesfrom_host && *filesfrom_host |
1163 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1164 | rprintf(FERROR, |
50b31539 | 1165 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1166 | exit_cleanup(RERR_SYNTAX); |
1167 | } | |
42ccb4c0 | 1168 | am_sender = 0; |
e208631a WD |
1169 | if (rsync_port) |
1170 | daemon_over_rsh = shell_cmd ? 1 : -1; | |
42ccb4c0 WD |
1171 | } else { /* source is local, check dest arg */ |
1172 | am_sender = 1; | |
1173 | ||
f7e5068d | 1174 | if (argc > 1) { |
ee8e2b15 | 1175 | p = argv[--argc]; |
f7e5068d WD |
1176 | remote_argv = argv + argc; |
1177 | } else { | |
1178 | static char *dotarg[1] = { "." }; | |
1179 | p = dotarg[0]; | |
1180 | remote_argv = dotarg; | |
d9c7edf6 | 1181 | } |
f7e5068d | 1182 | remote_argc = 1; |
a125c82a | 1183 | |
f7e5068d WD |
1184 | path = check_for_hostspec(p, &shell_machine, &rsync_port); |
1185 | if (path && filesfrom_host && *filesfrom_host | |
860236bf | 1186 | && strcmp(filesfrom_host, shell_machine) != 0) { |
7c2a9e76 | 1187 | rprintf(FERROR, |
50b31539 | 1188 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1189 | exit_cleanup(RERR_SYNTAX); |
1190 | } | |
f7e5068d | 1191 | if (!path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1192 | local_server = 1; |
860236bf | 1193 | if (filesfrom_host) { |
7c2a9e76 | 1194 | rprintf(FERROR, |
50b31539 | 1195 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1196 | exit_cleanup(RERR_SYNTAX); |
1197 | } | |
860236bf | 1198 | shell_machine = NULL; |
f7e5068d WD |
1199 | } else { /* hostspec was found, so dest is remote */ |
1200 | argv[argc] = path; | |
1201 | if (rsync_port) | |
1202 | daemon_over_rsh = shell_cmd ? 1 : -1; | |
1203 | } | |
5d6bcd44 | 1204 | } |
d16c245f | 1205 | } else { /* read_batch */ |
d9c7edf6 | 1206 | local_server = 1; |
f7e5068d | 1207 | if (check_for_hostspec(argv[argc-1], &shell_machine, &rsync_port)) { |
b9f592fb WD |
1208 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1209 | exit_cleanup(RERR_SYNTAX); | |
1210 | } | |
f7e5068d WD |
1211 | remote_argv = argv + argc - 1; |
1212 | remote_argc = 1; | |
6902ed17 MP |
1213 | } |
1214 | ||
f7e5068d | 1215 | if (am_sender) { |
a960239f WD |
1216 | char *dummy_host; |
1217 | int dummy_port = rsync_port; | |
f7e5068d WD |
1218 | int i; |
1219 | /* For local source, extra source args must not have hostspec. */ | |
1220 | for (i = 1; i < argc; i++) { | |
a960239f | 1221 | if (check_for_hostspec(argv[i], &dummy_host, &dummy_port)) { |
f7e5068d WD |
1222 | rprintf(FERROR, "Unexpected remote arg: %s\n", argv[i]); |
1223 | exit_cleanup(RERR_SYNTAX); | |
1224 | } | |
1225 | } | |
1226 | } else { | |
a960239f WD |
1227 | char *dummy_host; |
1228 | int dummy_port = rsync_port; | |
f7e5068d | 1229 | int i; |
a960239f WD |
1230 | /* For remote source, any extra source args must have either |
1231 | * the same hostname or an empty hostname. */ | |
f7e5068d | 1232 | for (i = 1; i < remote_argc; i++) { |
a960239f WD |
1233 | char *arg = check_for_hostspec(remote_argv[i], &dummy_host, &dummy_port); |
1234 | if (!arg) { | |
f7e5068d WD |
1235 | rprintf(FERROR, "Unexpected local arg: %s\n", remote_argv[i]); |
1236 | rprintf(FERROR, "If arg is a remote file/dir, prefix it with a colon (:).\n"); | |
1237 | exit_cleanup(RERR_SYNTAX); | |
1238 | } | |
a960239f WD |
1239 | if (*dummy_host && strcmp(dummy_host, shell_machine) != 0) { |
1240 | rprintf(FERROR, "All source args must come from the same machine.\n"); | |
1241 | exit_cleanup(RERR_SYNTAX); | |
1242 | } | |
1243 | if (rsync_port != dummy_port) { | |
1244 | if (!rsync_port || !dummy_port) | |
1245 | rprintf(FERROR, "All source args must use the same hostspec format.\n"); | |
1246 | else | |
1247 | rprintf(FERROR, "All source args must use the same port number.\n"); | |
1248 | exit_cleanup(RERR_SYNTAX); | |
1249 | } | |
1250 | remote_argv[i] = arg; | |
f7e5068d | 1251 | } |
e208631a WD |
1252 | } |
1253 | ||
1254 | if (daemon_over_rsh < 0) | |
f7e5068d | 1255 | return start_socket_client(shell_machine, remote_argc, remote_argv, argc, argv); |
e208631a | 1256 | |
a39da29a | 1257 | if (password_file && !daemon_over_rsh) { |
327c559a WD |
1258 | rprintf(FERROR, "The --password-file option may only be " |
1259 | "used when accessing an rsync daemon.\n"); | |
a39da29a WD |
1260 | exit_cleanup(RERR_SYNTAX); |
1261 | } | |
1262 | ||
ba22c9e2 WD |
1263 | if (connect_timeout) { |
1264 | rprintf(FERROR, "The --contimeout option may only be " | |
1265 | "used when connecting to an rsync daemon.\n"); | |
1266 | exit_cleanup(RERR_SYNTAX); | |
1267 | } | |
1268 | ||
5d6bcd44 | 1269 | if (shell_machine) { |
6fc048f4 | 1270 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1271 | if (p) { |
1272 | *p = 0; | |
1273 | shell_user = shell_machine; | |
1274 | shell_machine = p+1; | |
1275 | } | |
1276 | } | |
1277 | ||
951e826b | 1278 | if (DEBUG_GTE(CMD, 2)) { |
9486289c | 1279 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
f7e5068d WD |
1280 | NS(shell_cmd), NS(shell_machine), NS(shell_user), |
1281 | remote_argv ? NS(remote_argv[0]) : ""); | |
5d6bcd44 | 1282 | } |
d9c7edf6 | 1283 | |
f7e5068d WD |
1284 | pid = do_cmd(shell_cmd, shell_machine, shell_user, remote_argv, remote_argc, |
1285 | &f_in, &f_out); | |
75aeac44 WD |
1286 | |
1287 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1288 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1289 | if (daemon_over_rsh) { |
1290 | int tmpret; | |
f7e5068d | 1291 | tmpret = start_inband_exchange(f_in, f_out, shell_user, remote_argc, remote_argv); |
75aeac44 WD |
1292 | if (tmpret < 0) |
1293 | return tmpret; | |
1294 | } | |
1295 | ||
fc8a6b97 AT |
1296 | ret = client_run(f_in, f_out, pid, argc, argv); |
1297 | ||
1298 | fflush(stdout); | |
1299 | fflush(stderr); | |
1300 | ||
1301 | return ret; | |
5d6bcd44 AT |
1302 | } |
1303 | ||
366345fe | 1304 | |
067669da WD |
1305 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1306 | { | |
6bf32edb | 1307 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1308 | } |
1309 | ||
067669da WD |
1310 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1311 | { | |
33c4b445 WD |
1312 | if (!am_server) |
1313 | output_summary(); | |
40df65fd | 1314 | close_all(); |
3f0211b6 | 1315 | if (got_xfer_error) |
33c4b445 | 1316 | _exit(RERR_PARTIAL); |
8b35435f AT |
1317 | _exit(0); |
1318 | } | |
1319 | ||
6d59ac19 | 1320 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1321 | { |
029c1713 | 1322 | #ifdef WNOHANG |
ee7118a8 DD |
1323 | int cnt, status; |
1324 | pid_t pid; | |
1325 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1326 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1327 | * out we're instead saving the child exit statuses for later use. |
1328 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1329 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1330 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1331 | /* save the child's exit status */ |
1332 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1333 | if (pid_stat_table[cnt].pid == 0) { | |
1334 | pid_stat_table[cnt].pid = pid; | |
1335 | pid_stat_table[cnt].status = status; | |
1336 | break; | |
1337 | } | |
1338 | } | |
ee7118a8 | 1339 | } |
029c1713 | 1340 | #endif |
8261af74 | 1341 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1342 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1343 | #endif |
19b27a48 AT |
1344 | } |
1345 | ||
c0531332 MP |
1346 | |
1347 | /** | |
1348 | * This routine catches signals and tries to send them to gdb. | |
1349 | * | |
1350 | * Because it's called from inside a signal handler it ought not to | |
1351 | * use too many library routines. | |
1352 | * | |
1353 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1354 | * debugging without easy access to X. Perhaps use an environment | |
1355 | * variable, or just call a script? | |
1356 | * | |
1357 | * @todo The /proc/ magic probably only works on Linux (and | |
1358 | * Solaris?) Can we be more portable? | |
1359 | **/ | |
1360 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1361 | const char *get_panic_action(void) |
1362 | { | |
1363 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1364 | ||
1365 | if (cmd_fmt) | |
1366 | return cmd_fmt; | |
1367 | else | |
1368 | return "xterm -display :0 -T Panic -n Panic " | |
1369 | "-e gdb /proc/%d/exe %d"; | |
1370 | } | |
1371 | ||
1372 | ||
9fb3f7a9 MP |
1373 | /** |
1374 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1375 | * | |
1376 | * This signal handler is only installed if we were configured with | |
1377 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1378 | * should just look at the environment variable, but I'm a bit leery | |
1379 | * of a signal sending us into a busy loop. | |
1380 | **/ | |
067669da | 1381 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1382 | { |
1383 | char cmd_buf[300]; | |
1384 | int ret; | |
4fdc39dd | 1385 | |
83078af5 WD |
1386 | snprintf(cmd_buf, sizeof cmd_buf, get_panic_action(), |
1387 | getpid(), getpid()); | |
c0531332 MP |
1388 | |
1389 | /* Unless we failed to execute gdb, we allow the process to | |
1390 | * continue. I'm not sure if that's right. */ | |
1391 | ret = system(cmd_buf); | |
1392 | if (ret) | |
1393 | _exit(ret); | |
1394 | } | |
1395 | #endif | |
1396 | ||
1397 | ||
5d6bcd44 | 1398 | int main(int argc,char *argv[]) |
d9c7edf6 | 1399 | { |
ff81e809 | 1400 | int ret; |
66a9dc96 WD |
1401 | int orig_argc = argc; |
1402 | char **orig_argv = argv; | |
8261af74 WD |
1403 | #ifdef HAVE_SIGACTION |
1404 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1405 | sigset_t sigmask; |
5d6bcd44 | 1406 | |
60ee01f5 | 1407 | sigemptyset(&sigmask); |
8261af74 | 1408 | # endif |
60ee01f5 WD |
1409 | sigact.sa_flags = SA_NOCLDSTOP; |
1410 | #endif | |
1411 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1412 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1413 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1414 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1415 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1416 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1417 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1418 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1419 | #endif | |
5d6bcd44 | 1420 | |
7a6421fa | 1421 | starttime = time(NULL); |
19284e2e WD |
1422 | our_uid = MY_UID(); |
1423 | am_root = our_uid == 0; | |
c627d613 | 1424 | |
a800434a AT |
1425 | memset(&stats, 0, sizeof(stats)); |
1426 | ||
df5e03da AT |
1427 | if (argc < 2) { |
1428 | usage(FERROR); | |
65417579 | 1429 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1430 | } |
1431 | ||
7a6421fa | 1432 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1433 | * carried across */ |
05278935 | 1434 | orig_umask = umask(0); |
5d6bcd44 | 1435 | |
eb598fac WD |
1436 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1437 | setlocale(LC_CTYPE, ""); | |
1438 | #endif | |
1439 | ||
53936ef9 | 1440 | if (!parse_arguments(&argc, (const char ***) &argv)) { |
d9c7edf6 WD |
1441 | /* FIXME: We ought to call the same error-handling |
1442 | * code here, rather than relying on getopt. */ | |
50135767 | 1443 | option_error(); |
65417579 | 1444 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1445 | } |
5d6bcd44 | 1446 | |
60ee01f5 WD |
1447 | SIGACTMASK(SIGINT, sig_int); |
1448 | SIGACTMASK(SIGHUP, sig_int); | |
1449 | SIGACTMASK(SIGTERM, sig_int); | |
1450 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1451 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1452 | #endif | |
6b83141d | 1453 | |
34758d5c MP |
1454 | /* Ignore SIGPIPE; we consistently check error codes and will |
1455 | * see the EPIPE. */ | |
60ee01f5 | 1456 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1457 | #ifdef SIGXFSZ |
1458 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1459 | #endif | |
34758d5c | 1460 | |
29a89172 | 1461 | /* Initialize change_dir() here because on some old systems getcwd |
9af87151 WD |
1462 | * (implemented by forking "pwd" and reading its output) doesn't |
1463 | * work when there are other child processes. Also, on all systems | |
1464 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
29a89172 | 1465 | change_dir(NULL, CD_NORMAL); |
c226b7c2 | 1466 | |
44e9e221 WD |
1467 | init_flist(); |
1468 | ||
e8a96e27 | 1469 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1470 | if (write_batch) |
66a9dc96 | 1471 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1472 | |
dbbab0c4 WD |
1473 | if (read_batch && strcmp(batch_name, "-") == 0) |
1474 | batch_fd = STDIN_FILENO; | |
1475 | else { | |
1476 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1477 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1478 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1479 | } |
b9f592fb WD |
1480 | if (batch_fd < 0) { |
1481 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1482 | full_fname(batch_name)); |
b9f592fb WD |
1483 | exit_cleanup(RERR_FILEIO); |
1484 | } | |
9459290a WD |
1485 | if (read_batch) |
1486 | read_stream_flags(batch_fd); | |
e10664c5 WD |
1487 | else |
1488 | write_stream_flags(batch_fd); | |
6902ed17 | 1489 | } |
e8a96e27 WD |
1490 | if (write_batch < 0) |
1491 | dry_run = 1; | |
6902ed17 | 1492 | |
44c4492a WD |
1493 | if (am_server) { |
1494 | #ifdef ICONV_CONST | |
b61665d5 | 1495 | setup_iconv(); |
44c4492a WD |
1496 | #endif |
1497 | } else if (am_daemon) | |
7a6421fa | 1498 | return daemon_main(); |
f0fca04e | 1499 | |
f7e5068d WD |
1500 | if (am_server && protect_args) { |
1501 | char buf[MAXPATHLEN]; | |
71605b0f | 1502 | protect_args = 2; |
f7e5068d | 1503 | read_args(STDIN_FILENO, NULL, buf, sizeof buf, 1, &argv, &argc, NULL); |
53936ef9 | 1504 | if (!parse_arguments(&argc, (const char ***) &argv)) { |
f7e5068d WD |
1505 | option_error(); |
1506 | exit_cleanup(RERR_SYNTAX); | |
1507 | } | |
1508 | } | |
1509 | ||
08ac228f AT |
1510 | if (argc < 1) { |
1511 | usage(FERROR); | |
65417579 | 1512 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1513 | } |
1514 | ||
7a6421fa | 1515 | if (am_server) { |
f0359dd0 AT |
1516 | set_nonblocking(STDIN_FILENO); |
1517 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1518 | if (am_daemon) |
1519 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1520 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1521 | } | |
c627d613 | 1522 | |
ff81e809 | 1523 | ret = start_client(argc, argv); |
d9c7edf6 | 1524 | if (ret == -1) |
9098bbf3 | 1525 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1526 | else |
9098bbf3 MP |
1527 | exit_cleanup(ret); |
1528 | ||
0f5a04e3 | 1529 | return ret; |
c627d613 | 1530 | } |